122100040221 has 8 divisors (see below), whose sum is σ = 162880377504. Its totient is φ = 81359864880.

The previous prime is 122100040187. The next prime is 122100040229. The reversal of 122100040221 is 122040001221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122100040221 - 2¹⁰ = 122100039197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122100040221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122100040229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10033390 + ... + 10045551.

It is an arithmetic number, because the mean of its divisors is an integer number (20360047188).

Almost surely, 2^122100040221 is an apocalyptic number.

It is an amenable number.

122100040221 is a deficient number, since it is larger than the sum of its proper divisors (40780337283).

122100040221 is a wasteful number, since it uses less digits than its factorization.

122100040221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20080971.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122100040221 its reverse (122040001221), we get a palindrome (244140041442).

The spelling of 122100040221 in words is "one hundred twenty-two billion, one hundred million, forty thousand, two hundred twenty-one".